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Finding the Fourth Proportional to 30,597.48, 45,881.91 and 11,886.21

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Solution

The fourth proportional to 30,597.48, 45,881.91 and 11,886.21 is: 17,823.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,597.48 : 45,881.91 = 11,886.21 : x
  2. Step 2: Convert to fraction form
    30,597.48/45,881.91 = 11,886.21/x
  3. Step 3: Cross multiply
    30,597.48x = 45,881.91 × 11,886.21
  4. Step 4: Simplify right side
    30,597.48x = 545,362,017.46
  5. Step 5: Solve for x
    x = 545,362,017.46/30,597.48
  6. Step 6: Final answer
    x = 17,823.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.